An Israeli studyon lice removal published in the British Journal “Medical and Veterinary Entomology” in 1995 noted that Israeli scientists blamed permethrin in particular for the head lice resistance they found. “The results suggest that resistance to pyrethroids has developed rapidly among head lice since permethrin was introduced in 1991.”Lice Eggs
An Israeli studyon lice removal published in the British Journal “Medical and Veterinary Entomology” in 1995 noted that Israeli scientists blamed permethrin in particular for the head lice resistance they found. “The results suggest that resistance to pyrethroids has developed rapidly among head lice since permethrin was introduced in 1991.”